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Start learning 50% faster. Sign in nowThe ECB is based in Frankfurt am Main, Germany. Main building was designed by COOP HIMMELB(L)AU and completed in November 2014. It combines both historic and modern elements, making it a unique urban landmark. To read more about what we do, check out our explainers.
The measure of an angle is one-third of its supplementary angle. Find its measure.
In the given figure, O is centre of the circle. Circle has 3 tangents. If ∠ QPR = 45 0 , then what is the value (in degrees) of ∠ QOR ?
In the given figure, Ab = 30 cm and CD = 24 cm. What is the value (in cm) of MN?
In the given figure, the lengths of AC and BF are 16 cm and 5 cm, respectively. The ratio of AE to CE is given as 5:3. Determine the perimeter of triang...
The sides of a triangle are 24 cm, 26 cm and 10 cm. At each of its vertices, circles of radius 4.2 cm are drawn. What is the area (in cm²) of the t...
PQRS is a cyclic quadrilateral of which PQ is the diameter. Diagonals PR and QS intersect at A. If SQR = 25°, then angle PAS measures
Two concentric circles of radii 10 cm and 6 cm are given. Find the length of the chord of the larger circle which touches the smaller circle.
Find the ratio between the area of the in-circle and the circum-circle of a square?